Abstract

LESCO M-4 PM high-speed tool steel is a special purpose grade of the molybdenum-tungsten family. Abrasion and wear resistance are enhanced by the increased carbon and vanadium content. It is produced by the powder metallurgy process with resultant better grindability, toughness and improved microstructure as compared with conventional wrought M-4 steel. Sulfide additives enhance machinability. This datasheet provides information on composition, physical properties, microstructure, hardness, and elasticity. It also includes information on heat treating and machining. Filing Code: TS-500. Producer or source: Latrobe Steel Company.

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